Portable heater



(No Model.)

H. L. MOCOY. PORTABLE EEATEE.

Patented Nov. 26, 1889.

A .v0 0.@ 00000000.0025 f 0 .v0 O x 000 UNITED STATES PATENT OFFICE..

HENRY LEROY MCOOY, OF ELLIOOTTVILLE, NEI/V YORK.

PORTABLE H EATER.

SPECIFICATION forming part of Letters Patent No. 41 5,7 30, dated November 26, 1889.

Application filed January 5, 1889. Serial No. 295,557. (No model.)

To all wiwm t may concern:

Be it known that I, HENRY LEROY MGOOY, a citizen of the United States, residing at Ellicottville, in the county of Oattaraugus and State of New York, have invented new an d useful Improvements in Portable Heaters, of which the following is a specification.

I have produced a novel portable heating device consisting of sheet-metal drum or box7 in which the heat is provided by an oil or gas lamp, and within which it is collected and diffused for warming apartments where a high temperature is not desired, as in rooms occupied by sick persons, bed chambers, rooms for temporary use,sittingroon1s in the spring and fall months, and for warming chicken-houses, sties for young pigs, and for various purposes. The only opening in the device is at the bottom for the insertion ofthe lamp-chimney, which should extend within the chamber so as to give out as fully as possible all the heat therein, the air for supporting the combustion and for draft being admitted through said bottom opening around the chimney.- The heating capacity of the device is increased by interior devices, which may consist of wall strips, plates split radially and bent out, or of a supplemental box or drum open at the top and at the bottom, or of both such devices. The device is mounted upon legs to receive the lamp-chimney, and a guard or fender surrounds the legs to protect the lamp from accident.4

The accompanying drawings illustrate my improvement, which I will now describe, and particularly point ou't in the claim concluding this specification.

Referring to the drawings, Figure l represents my portable heater with the lamp in place,.and Fig. 2 is a vertical section of the same. Fig. 3 is a horizontal section, the inner drum being removed. Fig. 4: is a view of the inner side ofthe chamber-top, showing the scroll wall-strip. Fig. 5 is a vertical section of the device, without the supplemental-wall heat-collectors. Fig. 6 shows a supplemental heat-collecting plate with bentup radial strips, and which may be riveted to the top or to the sides of the heater; and Fig. 7 shows a sectional detail of the top part of the drum with the heat-collecting plate shown in Fig. G.

The heating chamber or drumA may be of any suitable size and shape, and isof thin sheet metal-iron orcopper-to give quick radiation of the heat. An ordinary size, when made of drum or cubical shape, would be about twelve or eighteen inches in any direction, or it may be of barrel or oblong form, having its only opening B in the bottom for the insertion of a lamp-chimney, the of air, and for the draft.

An oil or gas lamp O, of any suitable kind, provides the heat, and the chimney D of the burner is so placed as to extend up quite entirely within the chamber and be practically inclosed by it, so that all the heat from the flame and from the chimney will be given out directly within the chamber and collected and diffused through its thin walls. The opening B in the bottom of the chamber should be a little larger than the diameter of the chimney, to leave a space around it for the proper air-supply for the flame -and for the draft. As any ordinary oillamp,'however, may be used, I provide the bottom of the chamber with a separate air-vent c., closed bya slide f,

supply (seen in Fig 3,) so as to supplyairwithin the chamber for `the flame and for the draft in case the chimney should fill and close the opening through which it extends. As the lamp burns within the chamberA, all the heat therefrom and the heat from the chimney is collected within the chamber and maintains therein a uniform heat, so that the diffusion by radiation will be uniform and only by radiat-ion. Whatever products there may be from the combustion will collect upon the chamber-walls, as there is no flue-escape through the chamber. Then made of barrel or oblong form, two or more lamps may be used and when made of copper its capacity is to quickly absorb the collected heat and to quickly radiate it. The chamber is supported upon suitable legs c a proper height from the floor for the convenient placing and removing of the lamp, which may rest upon the oor or be suitably supported. The top of the chamber is preferably hat, to receive dishes or articles to be kept warm.

To increase the heat retaining and radiating capacity of the chamber, an interior box or drum E maybe used, with an opening c in its top, directly above the lamp-chimney, so

IOO

as to give free outlet for the heat from the flame into the main chamber. This interior drum is also provided with an opening e2 in its bottom for the insertion of the lamp-chimney, and for this purpose it is supported so as to leave a space all round it for the draft to the bottom opening e2 and circulation of the heat. The inner drum is supported on legs e5, or by Wall-brackets. This gives an open-top and an open-bottom chamber within a closed-top chamber, within the inner one of which thelamp-chimney extends, as shown in Fig. 5, and makes a very satisfactory heater. When so constructed, the interior box or drum may be made of copper and the main drum of sheet-iron,so that the interior drum Will quickly radiate the heat into the main chamber, and thus give the device increased heating capacity. In addition to this interior drum, or instead thereof, the heat retaining and radiating capacity of the main chamber maybe increased by supplementing its interior Walls with metal strips or coils or plates, split so as to form upset or bent or oblique strips b, like propeller-vanes, which may be secured in any suitable way. In Figs. 2, 3, and 4 such strips are shown as straight and of scroll form,while in Fig. 6 these strips may be formed in a sheet-plate split and upset or bent and secured by a center rivet, and this is preferable for" square chambers and for the top of the drum-chamber. A projection of about half an inch would be sufficient for the purpose, and it is obvious that these heat-collecting strips can be disposed in any suitable manner, and used with or without the interior chamber.

To protect the lamp from injury or from accidental displacement by children, or otherwise,I provide a suitable guard F,preferably of Wire, around the legs and fastened to them in any suitable manner, so as to be a fixture with the device.

G in its outer wall, whereby the heater may f also be used as a night-lamp, and for this purpose, When an interior box or drum is used,

it may also be provided with a corresponding 5o mica Window. This provision for utilizing a heating-drum as a night-lamp greatly enhances the utility of the device.

Vhen the split plate shown in Figs. 6 and 7 is used, it greatly increases the heating, retaining, and radiating capacity of the top of the drum and renders it useful for heating irons or for heating fluids. It will be understood that the heat of the chamber may also be decreased by opening the slide f so as to admit cold air therein.

I claim as my improvement- A portable heater consisting of an outer drum supported upon legs and having a central opening in its bottom for the insertion of a lamp-chimney, a draft-regulating damper in the bottom of said drum, at one side of said central opening, an inner drum having central openings in its top and in its bottom for the lamp-chimney and supported to form a space between it and said outer drum, and heateretaining strips arranged in the top, of said outer drum and above the top opening of said inner drum, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of subscribing witnesses.

HENRY LEROY MCCOY.

Witnesses JAMES MOFFIT, W. D. WALRATH, C. A. CASE, JAMES O. CLARK. 

